eric, i know you have a lot of sources at the fbi and other agencies like that. what can you tell us? >> reporter: i apologize for being out of breath. i was walking down fifth avenue, which is close to our studios and i heard a -- a jet -- perhaps a 737 or a small air bus, flying low, unusually low over fifth avenue, make egg right. i am not going to say -- i don't know -- i don't have any reports on what type of plane hit the world trade center. but people looked up and it made a right toward the building. >> nice and orderly, nice and orderly. >> it is a tragedy. it is abhorrent. it is disgusting. bru, you know -- but, i am wondering, are these pilots terrorists themselves? are there terrorists in the cockpit who are holding guns to a pilot's head? did they -- >> i can't imagine -- >> you can speculate completely about how this happens because, obviously, it takes a lot of training and expertise to fly a complicated, sophisticated aircraft, whether it's a boeing 737 or a smaller air bus, these are not cessnas or pipers. have you to raise the wonder and the pos